The Duramax LBZ engine was produced from 2005-2007 and is one of the most sought after Duramax engines as the last pre-emissions diesel from GM. Don’t miss our awesome LBZ articles like the 5 best Duramax LBZ mods and intake upgrade guide. Check out more LBZ 6.6 diesel content below and stay tuned for more in the future.
As the third entry into the Duramax family, GM had learned a few things about how to build a turbo diesel V8. Introduced halfway into the 2006 model year as a replacement for the outgoing LLY Duramax, the LBZ improved on a few notable design defects with the previous model. Additionally, the LBZ existed in…
The LBZ succeeded the LLY engine in 2006 and was short lived, being replaced by the LMM in mid-2007. Some notable changes included an upgraded CP3 fuel pump for higher rail pressure and a lower compression ratio which eliminated issues with connecting rod failure in modified LLY’s. Part of the reason for the short life…
LBZ Duramax Cold Air Intake Upgrade Basics If you had the 8.1 Vortec engine in your truck instead of a Duramax, I’d probably be telling you an intake is a waste of money. However, for turbo-diesel engines it’s one of the first mods we recommend for people just getting started. Outside of an upgraded LBZ…
The LBZ Duramax is, still today, the favorite Duramax of diesel enthusiasts. Produced from 2006 to 2007, the shortest production Duramax, the LBZ produced 360hp and 650lb-ft. of torque. To support the power increase over the LLY model, the block was improved, the rods were forged, and the engine was overall built to withstand more…
